On 2021-05-09 08:45, Paul Eggert proposed: > +VN +1045+10640 Asia/Bangkok Vietnam (north) Asia/Hanoi was not added to backward/ as a link, so it seems to be inappropriate to add it to zone.tab. But if it is added, then the coordinates should not be those of Ho Chi Minh City but those of Hanoi: +2102+10551 Michael Deckers.